A model for the Pockels effect in distorted liquid crystal blue phases
Recent experiments have found that a mechanically distorted blue phase can exhibit a primary linear electro-optic (Pockels) effect [F. Castles et al., Nat. Mater. 13, 817 (2014)]. Here, it is shown that flexoelectricity can account for the experimental results and a model, which is based on continuu...
| Main Author: | |
|---|---|
| Format: | Journal article |
| Published: |
American Institute of Physics
2015
|
| _version_ | 1797060917041561600 |
|---|---|
| author | Castles, F |
| author_facet | Castles, F |
| author_sort | Castles, F |
| collection | OXFORD |
| description | Recent experiments have found that a mechanically distorted blue phase can exhibit a primary linear electro-optic (Pockels) effect [F. Castles et al., Nat. Mater. 13, 817 (2014)]. Here, it is shown that flexoelectricity can account for the experimental results and a model, which is based on continuum theory but takes into account the sub-unit-cell structure, is proposed. The model provides a quantitative description of the effect accurate to the nearest order of magnitude and predicts that the Pockels coefficient(s) in an optimally distorted blue phase may be two orders of magnitude larger than in lithium niobate. |
| first_indexed | 2024-03-06T20:23:40Z |
| format | Journal article |
| id | oxford-uuid:2eada605-d8da-463e-a488-40b477b24bbe |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:23:40Z |
| publishDate | 2015 |
| publisher | American Institute of Physics |
| record_format | dspace |
| spelling | oxford-uuid:2eada605-d8da-463e-a488-40b477b24bbe2022-03-26T12:50:20ZA model for the Pockels effect in distorted liquid crystal blue phasesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2eada605-d8da-463e-a488-40b477b24bbeSymplectic Elements at OxfordAmerican Institute of Physics2015Castles, FRecent experiments have found that a mechanically distorted blue phase can exhibit a primary linear electro-optic (Pockels) effect [F. Castles et al., Nat. Mater. 13, 817 (2014)]. Here, it is shown that flexoelectricity can account for the experimental results and a model, which is based on continuum theory but takes into account the sub-unit-cell structure, is proposed. The model provides a quantitative description of the effect accurate to the nearest order of magnitude and predicts that the Pockels coefficient(s) in an optimally distorted blue phase may be two orders of magnitude larger than in lithium niobate. |
| spellingShingle | Castles, F A model for the Pockels effect in distorted liquid crystal blue phases |
| title | A model for the Pockels effect in distorted liquid crystal blue phases |
| title_full | A model for the Pockels effect in distorted liquid crystal blue phases |
| title_fullStr | A model for the Pockels effect in distorted liquid crystal blue phases |
| title_full_unstemmed | A model for the Pockels effect in distorted liquid crystal blue phases |
| title_short | A model for the Pockels effect in distorted liquid crystal blue phases |
| title_sort | model for the pockels effect in distorted liquid crystal blue phases |
| work_keys_str_mv | AT castlesf amodelforthepockelseffectindistortedliquidcrystalbluephases AT castlesf modelforthepockelseffectindistortedliquidcrystalbluephases |